I struggled to get one for mine back in August, they only made so many for 2008 and stock for all Montana accessories was fast running out then. Apparently the 2009 tents & accessories stock comes in to stores at the end of Feb and as there doesnt seem to be any difference between 2008 and 2009 Montana you should be able to get one then
Hi, I had the same problem at the end of last season & Looked at other tents in the outwell range. I found the SunValley 8 the closest match, same width but about 200mm longer which easily tucks under. also had the added advantage of being in stock at the time